Carbureter.



L. V.,FLECVHTEH.

v cAnBuREH; 4APPLICATION FILED DEQ. l2, 1912. RENEWED MAY 9,1918.

Patnted Aplz 29, 191%) l 55g attenua,

ARBURETER.

mare-mm 5s i441 mewn that LEONARD V, WLECHTER? @zc-en ef he VUnited States, Whoee msi n@ poet-@151e address is 4:2 West @Teh y., Qimmy,y and State 0f New Yoz'k, ,flied certain new and egisefu' 5 .iu Cerbureters, of which *ehe i501 pecceton. m'ehxlun reajses to mbureters pary to ea'mz'ete's for use on vehicles as mlwn'zoulem Y in the eenetrucien of carbureters of the @beve ehe'm'zer, the air' and liquid 'ue are :wum'A'xi-bed ghmufgf'h e tube which is knwn as e, /entu' mi @mfem'etng 'nube having an out werdy 51M portion in which the e511' 'pende and 've'porizes e spray mf liquid which prevenu ewng eax-ed Wh M1@ air. Very often is 'um dimi: f1-persiga of the fuel which @Mees e tem-the nflwuth of the Venturi tube eendeased :m51 runs flown im@ the surmmdng Ehe tube, This; muse eneng ofjhe chamber and e with the amper operaibn of 'I me forme of earbmfet xizaey ie mle is provided supplied is ae@ iebe e si. ee'tem tmxes and te Specification of Letters Eaten@ am the chamber edjzlcent )@eeembey: 12, H312, HQ. 736.5972. Renewed 9, w13. Serial il.

in through 'the openings is snz=eyed into /he tube sind given the Seme whirling motion which e'ee Hy 'vepo'zee he eem@ X11 the eccompzm mg dmving Figure l is a. leugm'ldixal sembem Sieve "time @if e. eerbureter embodying my in ven $33019. H

Fi 9, is a mgn'xemelsectionaken @leeg line 2M@ of Fig. The fuel ie conducted. 11o the carbureter b' e. tube cmmected in e sutabe-mamle"sue ne through e nipple l 'ilo the oewb chamber in which the fuel is kept et approximately constant level by' fiom, 3 which opemtes e' 'lever 4f connected to :L needle valve 5,'ezz;em.- ing into ehe epe-ning 'ef the v.nppe emi edepsed to cloSe the :seme when 'the ivquid la the foet chemise? visas izo a p'eeex'mine eve. The sprayiy nozzle 6 eommmleetes with 'the Hoetdxamber ihrough a 'E' ered is disposed Wfnn the usuel "Venturi or, hunting tube 8 having en m1 merrily Saying pozten 9 in which the air ad .'ue spray are thoroughly mixed. This Timing port-imi 9 n1" the mbe extends within e. eham benl() into which en additional supply of air is admitted to h@ engine pest he eux afy mfr-ve 11 'which opens ell'ometcey w propo-tnel to the. Suction eff zhe engine corresponding "no iner'eeeec speed ai' the Srl-me.

Wl new describe the novell' meme wlexexfy she fue?. which mm3! become cow @uw j We' ,e im@ KIS@ dense@ ondawhe@ back tombe @be ubelow the level of thechamber so that the bottoms thereof are preferably on a level with -or slightly below the bottom of the channel.

As the air admitted past the auxiliary valve rushes through the passage 10, a portion of it may also pass into the tube through these apertures 12. However, as these apertures extend at an angleto radii drawn thereto, the air lin passing into the tube will assume a whirling motion and thus carry with it any'of the condensed oil and spray the 'same into the tube causing it to intimately mix the rest of the mixture in the tube. This whirling motion also assists the roper mixing of the air and fuel drawn in tlirough the spraying nozzle 6 and the main air inlet.

I have illustrated herein an Iauxiliary fuel inlet consisting of a tube 13 having an en larged portion 15, forming a nozzle having a pin-hole opening 16 which is always open to the suction of the engine when th throttle valve is open.

As the air admitted past the auxiliary air valve rushes past this auxiliary fuel nozzle,

it mixes with the fuel sprayed therefrom and passes up to the englne together with the main fuel mixture. However should a portion of this fuel admitted through the nozzle 15 condense in the chamber 10, it will be carried into the tube through the apertures 12 and be again vaporized. y

It will be noted that in the construction of carbureter above disclosed, provision. is

l made for all emergencies and -it therefore yto ' operates satisfactorily under all conditions of running of the engine. The Venturi tube projectinoup into the chamber 10 prevents the air adinitted past the` auxiliary air valve from unduly disturbing the path of travel of the gases of the mixture from the Venturi tube, whereas should any of the fuel vapor condense it may settle and be sprayed back into the vtube-hy the auxiliary air supply. The latter in entering the 'tube as sumes' a whirling motion owing to the novel arrangement ofthe apertures and thus as.- sistsin the thorough mixing of the fuel within the tube.

Various 'changes may' be resorted to within the skill of the mechanic without departing from the spirit and scopev of this invention as defined in the appended claims.

Having thus described my invention, I claiinz- 1. A carbureter comprising a. carbureting tube, a fuel spraying nozzle therein, a main air inlet to said carbureting tube, a mixing chamber into which the calbureting tube is extended, and an auxiliary air inlet opening into said mixing chamber, said carbureting tube having an aperture vat a level to pre vent the accumulation of any condensed'tuel inaidmixing chamber. said aperture exthrough the bottom of .said chamber,

' for said fuel and air, an auxiliary air inlL tending at an angle te a radial line from the axis 'of the tube.

ill A cai eter comprising fuel ing nozzle, nstain air inlet, a carburct tubefor said fuel and air, an auv inlet, a chamber with which said la communicates, the end of the cai' i tube extending within said chamber, an sus;- iliary fuel nozzle in said chamber positioned between said tube and said auxiliary air inlet, said tubehaving a plurality' of circumfierentially spaced aperturesy and a groove' connecting said apertures, the, latter adaptN ed to conduct back into the. tube any fuel which may have condensed, in said chamber. .titl 3. A carbureter comprising a fuel spray ing nozzle, a main air inlet, a carburetii tube for said fuel and air, an finlet, a chamber with which inl communicates, the end elf 'the carl' tube being screw threaded for inse tube having an a erture Aand aY` circum; ,i ential shoulder 'be ow the level of the botM tom of the chamber forming ai periphc vchannel outlined by the bottom ofthe chan.,

ber and communicating with said aper' adapted to conduct back into 'the 'tube fuel which may hav' condensed in chamber. Y V V 4. A carbureter comprising a. fuel ing nozzle, a main air inlet, a calor, tube forsaid fuel and air having a i end to the outletof the bore, an inlet, a chamber with which, sait let communicates, the end ofthe ca' l ing an aperturea portion of wh below' the level of thebottom of the cb' and a channel adjacent to the tube nicating with the aperture adapte duct back into the tube any :fuel whie have condensed in said chamber, ing nozzle positioned below a directingl the contents of the n past said aperture and through sale, end of the mixing tube.

5. A carbureter comprising a fuel spray`AJ ing nozzle, a main air inlet, a mixing t a chamber with which said latter inlet comn municates, the end of the mixing Itube ex tending` Within said chamber, and having a plurality of circumferential-ily spaced apar# tures, extending at an angle to radial ,drawn from the .axis of the tube portions extending below the bottoni of thechamber and a citial channeLcommunic-ating with s tures adapted' to conduct bac-l5: in through the angel-arly dispose" any fuel which may have cond-ene. chamber,

6. ln a carbu'reufr, a main fuel nozzle, a main air inlet, a car' for the air and fuel, an auxiliary air inlet,

ve chamber into which the alr admitted through the` auxiliary air inlet passes, the end of said tube projecting into said chember, an auxiliary fuel nozzle located in said chamber, said tube having an aperture :formed ltherein located adjacent to the bottom of the chamber and adapted to conduct back into the tube any fuel which may have condensed in said chamber. I

7. A curbureter eomprislng a carbureting tube, a fuel sprnylng nozzle therein, a mam `air inlet' to 'said oarburetingr tube, a mixing chamber into Wluch the carburetingr tube is extended, and an auxiliary air inlet opening into said mixing chamber, end a secondary fuel nozzle located in said mixingy chamber, said carbureting tube having means located below said secondary fuel nozzle to prevent `the accumulation of any condensed fuel in said mixing chamber.

,8. A carbureter comprising a, carbureting tube, a fuel spraying nozzle therein, a main nir inlet to said carbureting tube, a mixing chamber into which the carbureting tube is extended, an auxiliary air inlet opening into said mixing chamber, and a secondary fuel nozzle located in said mixing chamber, said carbureting tube having an aperture at a. level to re-convey to said tube for revaporization any fuel which condenses in the mixing chamber.

This specification signed. and witnessed this 7th day of December, A, D.; 1912.

LEONARD V. FLELHTER. Signed in the presencef- P. WINNF., M,

SARA A. THORNTON. 

